A consistent networking method based on isa100.11a standard

Abstract

The invention discloses a consistent networking method based on an ISA100.11a standard. The method comprises the steps of ignoring function difference of all wireless devices, carrying out collectionand statistics on single-hop wireless communication quality of a whole grid network topology through a system manager and taking the single-hop wireless communication quality as point-to-point weightin the topology; evaluating the weight and generating unconnected complex network topology graphs; forming a fully-connected new graph through utilization of a backbone router and the unconnected complex network topology graphs of all wireless devices; marking the weight of all added sides starting from the backbone router as 1; solving the minimum spanning tree by taking the backbone router as aroot node; extracting the out-degree of the root node of the minimum spanning tree, setting the out-degree as K, wherein the least number of trees contained by the unconnected complex network topologygraphs is equal to a K value, obtaining all nodes directly connected with the root node from the minimum spanning tree, and taking the nodes as the nodes of routing devices, thereby realizing the consistent networking. According to the method, the connection of a whole wireless sensor network can be realized with the least number of routers.

Description

technical field [0001] The invention relates to a wireless sensor network design method, in particular to a consistent networking method based on the ISA100.11a standard, which reduces the number of routing devices and realizes dynamic update of network topology under the premise of ensuring data collection and communication. Background technique [0002] Currently the most commonly used wireless sensor network standards in the industrial field are ISA100.11a, WirelessHART and WIA-PA protocols. These standards define field devices equipped with sensors and routing devices responsible for wireless forwarding. These two types of wireless devices form a wireless sensor network that meets certain acquisition coverage requirements through appropriate topology networking. [0003] During network deployment, considering that routing devices often need to undertake more wireless transmission tasks than field devices, and in order to meet the requirements of low cost and low energy c...

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Problems solved by technology

However, how to use the role switching of wireless devices to realize flexible networking is not stipulated in the agreement. The traditional maximum path algorithm is likely to cause too many routing devices, so that the number of effective field devices that can perform sensing and acquisition tasks is too small, reducing the The overall efficiency and information collection capabilities of the network

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